Knowl (XenoGear)

The Void is a plane of existence known to few, traversed by none. In the Void is exactly what you'd expect, nothingness. However, there looms a dark entity in the center, a mass of nothingness. This entity can rip wormholes through time and space and reach to the other planes, as it wished to gain for its nothingness. The entity simply called as "Abyss" yearns to learn, consume, and interact from planes of existence other than the cage that he calls home, the Void. However, Abyss can not simply jump from one plane of existence to another, no, for it knows that this action will disrupt the balance of time and space, and would cause the collapse of everything it knew, including itself. It's huge size and it's imppulses will be enough to destroy entire planes. So it devised a plan, it would send pieces of itself to be sent off to the other planes so that they could finally do what Abyss wanted. They are now what we call "Voidspawns" and each corresponds to one of Abyss' desire, Ract as the "Consume", Knowl as the "Interact", and Vou as the "Learn". The story is focused on Knowl who, despite of Abyss' efforts to make him look more approachable, looks like a menacing monster. Since he is the "Interact" desire of Abyss, he has the qualities of what humans say as a "good person". He now lives with the mortal plane creatures to interact and blend with them.
 * 1) Appearance

Appearance
Features: Obviously looks like a monster with civil clothing, has a crooked smile and white blank eyes.

Personality
The qualities of what humans call a "good person"